FSX:SENow what..? (Gmax and Windows 10, new problem?)

So... the right click stoped working on gmax suddenly... no errors, no warnings... just one day it just...stop. Is this a new problem with Windows 10? Did someone experience the same problem? Restore the keybinding to default values didn't fix the problem.
Edit: Tried compatibility mode and nothing...

It's been OK for me, just tried right click this morning. I'm on Windows 10 as well and my system is up to date. I've seen right-click stop working before though, try a reboot or update your GPU driver. I use the Gmax OpenGL driver, not DirectX, I think OpenGL does a better job of maintaining compatibility with older programs. Failing that try switching to the Heidi driver.

Well... I found the problem... somehow gmax.exe was damaged... just copy the exe from an old backup and everything works fine.
Hope this can help if someone gets the same problem again.
Edit: Update the tags on the thread

Earlier in the week this happened to me, after a graphics driver update. Although I normally don't run System Restore, because of limited space on my SSD, I actually turned it on before running the update, based on these sorts of reports recently. I thought I'd created a restore point, but apparently I didn't.
However last night my PC did an update, and this morning GMAX is back to normal.
I guess we are lucky that this old program still runs at all

In MS own site there are reams of issues logged about their latest updates. the "October 2018" update is the fault and MS have cleverly reissued installs with the same title and BUT have slipped in many fixes that have impacted on so many users. The issue of graphics style programs falling over because the systems after update reporting that the software / driver was damaged or corrupt was in fact rubbish, the computers were only trying to flag an issue - the actual reason was the OS. Nvidia , Photoshop etc were all seeing issues especially on older motherboards - it was NT the driver, CPU or the application at fault but the OS. This was the update of march 12- 19

Addresses an issue in Microsoft HoloLens with tracking and device calibration that has affected some users. You may notice improvement 10-15 minutes after installing this update, but we recommend resetting the holograms for best results.

Addresses an issue that may cause users to receive “Error 1309” while installing or uninstalling certain types of MSI and MSP files.

Addresses an issue that may degrade graphics and mouse performance with desktop gaming when playing certain games, such as Destiny 2, after installing KB4482887.

Photoshop and Elements users and some 3 d graphics users reports corrupted monitor drivers as they launched their programmes - setting the driver to sRGBIEC619966-2.1 is fixing it and its already resident in MS machines.